Drainage Geotextile Fabric
1. Isolation advantage: Effectively separate soils and materials of different properties, prevent them from mixing with each other, and maintain the integrity and bearing capacity of their respective structures.
2. Filtering advantage: allowing water to pass smoothly while effectively preventing soil particle loss and preventing foundation or slope from being hollowed out.
3. Drainage advantage: Forming drainage channels to quickly collect and discharge excess water from the soil, accelerating soil stability.
4. Reinforcement advantage: By utilizing its own high strength, it disperses soil stress, limits lateral displacement, and significantly improves the overall strength and stability of the soil.
5. Protection advantage: As a buffer layer, it reduces the impact and damage of water flow, waves, or falling rocks on engineering structures .
Product Introduction:
Drainage Geotextile Fabric is a high-performance permeable geosynthetic material designed for civil drainage, soil filtration and ground stabilization. Our product lineup covers versatile options including Woven Drainage Fabric, heavy-duty 300 gsm Geotextile, and Thermally Bonded Non Woven Geotextile to fit diverse engineering needs. Crafted from premium polypropylene and polyester fibers, these geotextiles feature outstanding water permeability and stable particle interception performance. They efficiently drain stagnant groundwater and rainwater while preventing soil loss, clogging and foundation erosion. Widely applied in road construction, retaining wall drainage, landscape renovation and foundation treatment, they offer excellent tensile strength, corrosion resistance and easy installation, effectively stabilizing subgrade and cutting long-term project maintenance costs.
Main Features
The characteristics of geotextiles are determined by their polymer materials and special processes, centered around "functionality" and "engineering adaptability", which can be summarized into the following five points:
1. Excellent physical and mechanical properties:
High tensile strength: The tensile strength of woven geotextile can reach 20-100kN/m, which can effectively resist the tensile force generated by soil deformation and meet the reinforcement requirements;
Controllable elongation rate: According to engineering requirements, the elongation rate can be adjusted (usually 5% -30%) to ensure deformation coordination and avoid excessive tensile fracture;
Anti puncture and wear-resistant: The surface fiber structure or interwoven structure can resist punctures from sand, gravel, and sharp objects, extending the service life of the project.
2. Stable chemical corrosion resistance:
Polymer materials such as polypropylene and polyester are inherently resistant to acid and alkali (stable within the pH range of 3-11), salt spray, and microbial erosion. They are not easily aged or decomposed in complex environments such as soil, groundwater, and seawater, and are typically designed to have a service life of over 50 years (depending on the material selection, for example, polyester has better weather resistance than polypropylene).
3. Good permeability and filtration:
The porous structure of non-woven geotextiles (usually with a porosity of 40% -90%) allows water to freely penetrate while blocking soil particles from passing through - this "permeable and impermeable" characteristic is the core of its "filtration" and "drainage" functions, which can prevent soil loss or pipeline blockage.
4. Lightweight and easy to construct:
Geotextile is lightweight (usually 100-800g/㎡), thin in thickness (1-5mm), packaged in rolls (each roll length 50-100m), and has low transportation and handling costs; No complex equipment is required during construction, only splicing (sewing, hot bonding, or overlapping) is needed, which is much more efficient than traditional materials such as sand and gravel filter layers.
5. Strong environmental adaptability:
Excellent resistance to high and low temperatures, capable of working normally in environments ranging from -40 ℃ to 80 ℃, suitable for extreme climates such as cold and high temperature regions; At the same time, some geotextiles can be recycled or slowly degraded in natural environments (such as bio based geotextiles), which is environmentally friendly.
Product Parameters:
project | metric | ||||||||||
Nominal strength/(kN/m) | |||||||||||
6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |||
1 | Longitudinal and transverse tensile strength / (kN/m) ≥ | 6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |
2 | Maximum elongation at maximum load in longitudinal and transverse directions/% | 30~80 | |||||||||
3 | CBR top penetration strength /kN ≥ | 0.9 | 1.6 | 1.9 | 2.9 | 3.9 | 5.3 | 6.4 | 7.9 | 8.5 | |
4 | Longitudinal and transverse tearing strength /kN | 0.15 | 0.22 | 0.29 | 0.43 | 0.57 | 0.71 | 0.83 | 1.1 | 1.25 | |
5 | Equivalent aperture O.90(O95)/mm | 0.05~0.30 | |||||||||
6 | Vertical permeability coefficient/(cm/s) | K× (10-¹~10-), where K=1.0~9.9 | |||||||||
7 | Width deviation rate /% ≥ | -0.5 | |||||||||
8 | Unit area mass deviation rate /% ≥ | -5 | |||||||||
9 | Thickness deviation rate /% ≥ | -10 | |||||||||
10 | Thickness coefficient of variation (CV)/% ≤ | 10 | |||||||||
11 | Dynamic perforation | Puncture hole diameter/mm ≤ | 37 | 33 | 27 | 20 | 17 | 14 | 11 | 9 | 7 |
12 | Longitudinal and transverse fracture strength (grab method)/kN ≥ | 0.3 | 0.5 | 0.7 | 1.1 | 1.4 | 1.9 | 2.4 | 3 | 3.5 | |
13 | Ultraviolet resistance (Xenon arc lamp method) | Longitudinal and transverse strength retention rate% ≥ | 70 | ||||||||
14 | Ultraviolet resistance (fluorescence UV lamp method) | Longitudinal and transverse strength retention rate% ≥ | 80 | ||||||||
Product Applications:
Drainage Geotextile Fabric is a multi-functional, high-performance permeable geosynthetic material specially engineered for modern civil engineering, landscape construction, and infrastructure stabilization projects. It serves four core functions: effective drainage, accurate soil filtration, ground separation, and long-term erosion control, solving common construction problems such as foundation waterlogging, soil loss, subgrade softening, and structural settlement. To meet varying project load requirements and construction environments, our complete product series covers three mainstream types: high-tensile Woven Drainage Fabric, heavy-duty 300 gsm Geotextile, and durable Thermally Bonded Non Woven Geotextile, covering both light-duty landscaping and heavy-duty civil engineering applications.
Manufactured from high-quality polypropylene and polyester fibers, these professional geotextile fabrics feature excellent water permeability and stable particle retention performance. The specialized fabric structure allows rapid passage of rainwater and underground stagnant water to accelerate foundation drainage, while effectively intercepting fine soil particles to prevent pipeline blockage and soil erosion. The Woven Drainage Fabric boasts ultra-high tensile and puncture resistance, ideal for heavy-load road bases, slope protection, and long-term buried engineering scenarios. The standard 300 gsm Geotextile balances strength and cost efficiency perfectly, serving as the most versatile option for most conventional drainage and stabilization projects. Meanwhile, the Thermally Bonded Non Woven Geotextile features uniform fiber distribution, superior flexibility and excellent filtration effects, which fits fine drainage, landscape renovation and soft ground treatment.
All Drainage Geotextile Fabric options come with outstanding corrosion resistance, anti-aging performance and weather adaptability, capable of maintaining stable performance in humid, acidic and alkaline soil environments for decades. Lightweight and flexible, the fabrics are easy to cut, lay and install on various irregular ground surfaces. By optimizing underground water circulation and stabilizing the soil structure, these geotextile materials greatly improve the overall stability and bearing capacity of engineering foundations, significantly extend project service life, and effectively reduce later repair and maintenance costs for road construction, retaining wall backfill, garden drainage, railway subgrade and municipal engineering projects.
Geotextile, as a multifunctional, efficient, and economical geosynthetic material, has become an indispensable core material in modern geotechnical engineering. Its core value lies in solving the pain points of "filtration, drainage, isolation, and reinforcement" in traditional engineering through "material innovation", while reducing engineering costs, shortening construction periods, and improving durability. With the increasing environmental requirements and technological advancements, new products such as bio based geotextiles and intelligent monitoring geotextiles (integrated sensors) will further expand their application boundaries in the future.
